20212210022012 has 24 divisors (see below), whose sum is σ = 36063874289520. Its totient is φ = 9910157621760.

The previous prime is 20212210021919. The next prime is 20212210022021. The reversal of 20212210022012 is 21022001221202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238917914 + ... + 239002497.

It is an arithmetic number, because the mean of its divisors is an integer number (1502661428730).

Almost surely, 2^{20212210022012} is an apocalyptic number.

It is an amenable number.

20212210022012 is a deficient number, since it is larger than the sum of its proper divisors (15851664267508).

20212210022012 is a wasteful number, since it uses less digits than its factorization.

20212210022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477920621 (or 477920619 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20212210022012 its reverse (21022001221202), we get a palindrome (41234211243214).

The spelling of 20212210022012 in words is "twenty trillion, two hundred twelve billion, two hundred ten million, twenty-two thousand, twelve".